This circuit can generate signals of different frequencies, switched by a DC voltage. The frequencies are determined by the crystals. The circuit is from a 90s American documentation.
In the figure we have the way to configure a control for incandescent lamps with full wave control...
The gain of this amplifier depends on the component values as well as the operating range and the...
This circuit was obtained in an Electronque Loisirs magazine from France, in a July 1991 edition. It...